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Cannabidiol Oral Solution for the Treatment of Patients With Prader-Willi Syndrome

R

Radius Health

Status and phase

Terminated
Phase 2

Conditions

Prader-Willi Syndrome

Treatments

Drug: Cannabidiol
Drug: Placebo

Study type

Interventional

Funder types

Industry

Identifiers

NCT02844933
INS011-16-085

Details and patient eligibility

About

The primary objective of this study is to assess the efficacy of cannabidiol oral solution on hyperphagia-related behavior in patients with Prader-Willi Syndrome (PWS). The secondary objectives of this study are to assess the efficacy, safety and tolerability, impact on quality of life, and impact on physical activity of cannabidiol oral solution in patients with PWS.

Enrollment

7 patients

Sex

All

Ages

8 to 17 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Participant and/or parent(s)/caregiver(s) fully comprehend the informed consent form and assent form, understand all study procedures, and can communicate satisfactorily with the investigator and study coordinator, in accordance with applicable laws, regulations, and local requirements.

  • Participants with a genetically confirmed diagnosis of Prader-Willi Syndrome using standard deoxyribonucleic acid methylation test or fluorescent in situ hybridization. Documentation of genetically confirmed diagnosis of Prader-Willi Syndrome is acceptable.

  • A score of ≥10 on the Hyperphagia Questionnaire for Clinical Trials (HQ-CT).

  • A caregiver is available to complete the HQ-CT.

  • If female, is either not of childbearing potential (defined as premenarchal or surgically sterile [bilateral tubal ligation, bilateral oophorectomy, or hysterectomy]) or practicing one of the following medically acceptable methods of birth control:

    1. Hormonal methods such as oral, implantable, injectable, vaginal ring, or transdermal contraceptives for a minimum of 1 full cycle (based on the participant's usual menstrual cycle period) before study drug administration.
    2. Total abstinence from sexual intercourse since the last menses before study drug administration.
    3. Intrauterine device.
    4. Double-barrier method (condoms, sponge, or diaphragm with spermicidal jellies or cream).
  • Adequate renal function, defined as serum creatinine ≤ 1.5*upper limit of normal (ULN) and urine protein/creatinine ratio ≤0.4. The Investigator may deem the participant eligible if he or she judges the laboratory values to be not clinically significant.

  • Adequate hepatic function, defined as total bilirubin ≤ 1.5*ULN and aspartate aminotransferase and alanine aminotransferase levels ≤ 3*ULN.

  • Growth hormone treatment will be permitted if doses have been stable for at least 1 month prior to screening.

  • Psychotropic treatment will be permitted and should be stable at least 6 weeks prior to screening.

  • Any other treatment including thyroid hormones should be stable for at least 6 weeks prior to screening.

Exclusion criteria

  • Known use of cannabis or cannabinoid-containing products for 4 weeks prior to baseline.
  • History of chronic liver diseases, such as cirrhosis or chronic hepatitis due to any cause, or suspected alcohol abuse.
  • Use of weight loss agents or drugs known to affect appetite (including glucagon-like peptide-1 [GLP-1] analogs) within 2 months prior to screening.
  • Uncontrolled Type I and Type II diabetes.
  • Currently taking concomitant medication that are strong-moderate inhibitors/inducers/sensitive substrates with a narrow therapeutic index for CYP2C19 or CYP3A.
  • Co-morbid condition or disease (such as respiratory disease, heart disease, or psychiatric disorder) diagnosed less than 1 month prior to screening.
  • History or presence of gastrointestinal or any other condition known to interfere with the absorption, distribution, metabolism, or excretion of drugs as determined by the Investigator.
  • Participants who have participated in any other trials involving an investigational product or device within 30 days of screening or longer as required by local regulations.
  • Clinically significant abnormalities on electrocardiogram at screening or other evidence of heart disease as determined by the Investigator.
  • Has screening systolic blood pressure ≥160 millimeters of mercury (mmHg) and diastolic blood pressure >100 mm Hg (may be repeated 1 additional time after 5 minutes rest to verify). Participants with hypertensive levels lower than those specified may be excluded at the Investigator's discretion if deemed to be in the best interest of the participant.
  • Currently taking felbamate.
  • Uncontrolled sleep apnea.
  • Pregnant or lactating female.
  • History of hypersensitivity to drugs with a similar chemical structure or class as cannabidiol.
  • Unwillingness or inability to follow the procedures outlined in the protocol.
  • Participant judged by the investigator or sponsor (or designee) as unable to comply with the treatment protocol, including appropriate supportive care, follow-up and research tests.
  • Positive drug screen, including tetrahydrocannabinol, at time of screening.
  • Creatinine clearance test of < 30 milliliters/minute (mL/min).

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Double Blind

7 participants in 2 patient groups, including a placebo group

Cannabidiol
Experimental group
Description:
Cannabidiol oral solution (40 milligram/kilogram/day \[40 mg/kg/day\]) divided into two daily doses with a standard meal
Treatment:
Drug: Cannabidiol
Placebo
Placebo Comparator group
Description:
Matching placebo solution divided into two daily doses with a standard meal
Treatment:
Drug: Placebo

Trial documents
2

Trial contacts and locations

7

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Data sourced from clinicaltrials.gov

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